life of a carbon atom

[mandimoo]

ages ago i heard something on radio 4's book at bedtime or latebook perhaps. i think it was a piece of prose about the life of a carbon atom and went along the lines of ... and i was rained out of the sky onto a blade of grass, then eaten by a sheep and spend several days being digested then was pood out and fertilised a tree, etc etc. what is the correct title and who is it by?

[BBWCHATT]

Do you think it could be this:

An essay by Primo Levi, an Italian chemist, who in his book �The Periodic Table� sets himself to imagine the life of a carbon atom. This was he says, his first �literary dream� that came to him during his imprisonment in Auschwitz.

[mandimoo]

that sounds very likely to be it, thanks very much. ;o)